| /** |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you under the Apache License, Version 2.0 (the |
| * "License"); you may not use this file except in compliance |
| * with the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| package org.apache.ambari.server.api.services; |
| |
| import org.apache.ambari.server.api.resources.ResourceInstance; |
| import org.apache.ambari.server.controller.spi.Resource; |
| |
| import javax.ws.rs.*; |
| import javax.ws.rs.core.*; |
| import java.util.HashMap; |
| import java.util.Map; |
| |
| /** |
| * Service responsible for components resource requests. |
| */ |
| public class ComponentService extends BaseService { |
| /** |
| * Parent cluster id. |
| */ |
| private String m_clusterName; |
| |
| /** |
| * Parent service id. |
| */ |
| private String m_serviceName; |
| |
| /** |
| * Constructor. |
| * |
| * @param clusterName cluster id |
| * @param serviceName service id |
| */ |
| public ComponentService(String clusterName, String serviceName) { |
| m_clusterName = clusterName; |
| m_serviceName = serviceName; |
| } |
| |
| /** |
| * Handles GET: /clusters/{clusterID}/services/{serviceID}/components/{componentID} |
| * Get a specific component. |
| * |
| * @param headers http headers |
| * @param ui uri info |
| * @param componentName component id |
| * @return a component resource representation |
| */ |
| @GET |
| @Path("{componentName}") |
| @Produces("text/plain") |
| public Response getComponent(@Context HttpHeaders headers, @Context UriInfo ui, |
| @PathParam("componentName") String componentName) { |
| |
| return handleRequest(headers, null, ui, Request.Type.GET, |
| createComponentResource(m_clusterName, m_serviceName, componentName)); |
| } |
| |
| /** |
| * Handles GET: /clusters/{clusterID}/services/{serviceID}/components |
| * Get all components for a service. |
| * |
| * @param headers http headers |
| * @param ui uri info |
| * @return component collection resource representation |
| */ |
| @GET |
| @Produces("text/plain") |
| public Response getComponents(@Context HttpHeaders headers, @Context UriInfo ui) { |
| return handleRequest(headers, null, ui, Request.Type.GET, |
| createComponentResource(m_clusterName, m_serviceName, null)); |
| } |
| |
| /** |
| * Handles: POST /clusters/{clusterID}/services/{serviceID}/components |
| * Create components by specifying an array of components in the http body. |
| * This is used to create multiple components in a single request. |
| * |
| * @param body http body |
| * @param headers http headers |
| * @param ui uri info |
| * |
| * @return status code only, 201 if successful |
| */ |
| @POST |
| @Produces("text/plain") |
| public Response createComponents(String body, @Context HttpHeaders headers, @Context UriInfo ui) { |
| |
| return handleRequest(headers, body, ui, Request.Type.POST, |
| createComponentResource(m_clusterName, m_serviceName, null)); |
| } |
| |
| /** |
| * Handles: POST /clusters/{clusterID}/services/{serviceID}/components/{componentID} |
| * Create a specific component. |
| * |
| * @param body http body |
| * @param headers http headers |
| * @param ui uri info |
| * @param componentName component id |
| * |
| * @return information regarding the created component |
| */ |
| @POST |
| @Path("{componentName}") |
| @Produces("text/plain") |
| public Response createComponent(String body, @Context HttpHeaders headers, @Context UriInfo ui, |
| @PathParam("componentName") String componentName) { |
| |
| return handleRequest(headers, body, ui, Request.Type.POST, |
| createComponentResource(m_clusterName, m_serviceName, componentName)); |
| } |
| |
| /** |
| * Handles: PUT /clusters/{clusterID}/services/{serviceID}/components/{componentID} |
| * Update a specific component. |
| * |
| * @param body http body |
| * @param headers http headers |
| * @param ui uri info |
| * @param componentName component id |
| * |
| * @return information regarding the updated component |
| */ |
| @PUT |
| @Path("{componentName}") |
| @Produces("text/plain") |
| public Response updateComponent(String body, @Context HttpHeaders headers, @Context UriInfo ui, |
| @PathParam("componentName") String componentName) { |
| |
| return handleRequest(headers, body, ui, Request.Type.PUT, createComponentResource( |
| m_clusterName, m_serviceName, componentName)); |
| } |
| |
| /** |
| * Handles: PUT /clusters/{clusterID}/services/{serviceID}/components |
| * Update multiple components. |
| * |
| * @param body http body |
| * @param headers http headers |
| * @param ui uri info |
| * |
| * @return information regarding the updated component |
| */ |
| @PUT |
| @Produces("text/plain") |
| public Response updateComponents(String body, @Context HttpHeaders headers, @Context UriInfo ui) { |
| |
| return handleRequest(headers, body, ui, Request.Type.PUT, createComponentResource( |
| m_clusterName, m_serviceName, null)); |
| } |
| |
| /** |
| * Handles: DELETE /clusters/{clusterID}/services/{serviceID}/components/{componentID} |
| * Delete a specific component. |
| * |
| * @param headers http headers |
| * @param ui uri info |
| * @param componentName cluster id |
| * @return information regarding the deleted cluster |
| */ |
| @DELETE |
| @Path("{componentName}") |
| @Produces("text/plain") |
| public Response deleteComponent(@Context HttpHeaders headers, @Context UriInfo ui, |
| @PathParam("componentName") String componentName) { |
| |
| return handleRequest(headers, null, ui, Request.Type.DELETE, createComponentResource( |
| m_clusterName, m_serviceName, componentName)); |
| } |
| |
| /** |
| * Create a component resource instance. |
| * |
| * |
| * @param clusterName cluster name |
| * @param serviceName service name |
| * @param componentName component name |
| * |
| * @return a component resource instance |
| */ |
| ResourceInstance createComponentResource(String clusterName, String serviceName, String componentName) { |
| Map<Resource.Type,String> mapIds = new HashMap<Resource.Type, String>(); |
| mapIds.put(Resource.Type.Cluster, clusterName); |
| mapIds.put(Resource.Type.Service, serviceName); |
| mapIds.put(Resource.Type.Component, componentName); |
| |
| return createResource(Resource.Type.Component, mapIds); |
| } |
| } |